Re: Firestone 1950 5hp Spark Plugs

Home › Forum › Ask A Member › Firestone 1950 5hp Spark Plugs › Re: Firestone 1950 5hp Spark Plugs

May 24, 2015 at 12:10 am #16743
Mumbles
Participant

    The book sez, Champion H-10J set at .035".